如何在Delphi中发出HTTPS POST请求?

时间:2010-11-19 09:54:08

标签: delphi indy

在Delphi中执行HTTPS POST请求的最简单方法是什么?我在发出HTTP POST请求时遇到问题,但是如何使用SSL呢?我已经google了一下,并没有找到任何能够解释得很好的东西。

这是我尝试过的代码:

procedure TForm1.FormCreate(Sender: TObject);
var
  responseXML:TMemoryStream;
  responseFromServer:string;
begin
  responseXML := TMemoryStream.Create;
  IdSSLIOHandlerSocketOpenSSL1 := TIdSSLIOHandlerSocketOpenSSL.Create(self);
  with idSSLIOHandlerSocketOpenSSL1 do
    begin
      SSLOptions.Method := sslvSSLv2;
      SSLOptions.Mode := sslmUnassigned;
      SSLOptions.VerifyMode := [];
      SSLOptions.VerifyDepth := 0;
      host := '';
    end;

  IdHTTP1 := TIdHTTP.Create(Self);
  with IdHTTP1 do
    begin
      IOHandler := IdSSLIOHandlerSocketOpenSSL1;
      AllowCookies := True;
      ProxyParams.BasicAuthentication := False;
      ProxyParams.ProxyPort := 0;
      Request.ContentLength := -1;
      Request.ContentRangeEnd := 0;
      Request.ContentRangeStart := 0;
      Request.Accept := 'text/html, */*';
      Request.BasicAuthentication := False;
      Request.UserAgent := 'Mozilla/3.0 (compatible; Indy Library)';
      HTTPOptions := [hoForceEncodeParams];
    end;
  responsefromserver := IdHTTP1.Post('https://.../','name1=value1&name2=value2&....');
end;

当我尝试运行它时,我收到以下错误:

Project myProject.exe raised exception class EFOpenError with message 'Cannot open file "C:\...\Projects\Debug\Win32\name1=value1name2=value2 The system cannot find the file specified'.

我不明白。我发送参数,虽然错误听起来像我会发送文件。

此外,我在myProject.exe文件夹中包含了libeay32.dll和ssleay32.dll。

3 个答案:

答案 0 :(得分:3)

你没有指定你的Delphi版本或indy版本,但是在使用捆绑的Indy与Delphi 2009和HTTPS之前我遇到了一些问题,当我从indy svn获得最新的源代码时,问题就解决了。< / p>

答案 1 :(得分:2)

http://chee-yang.blogspot.com/2008/03/using-indy-https-client-to-consume.html

var S: TStringList;
   M: TStream;
begin
 S := TStringList.Create;
 M := TMemoryStream.Create;
 try
   S.Values['Email'] := 'your google account';
   S.Values['Passwd'] := 'your password';
   S.Values['source'] := 'estream-sqloffice-1.1.1.1';
   S.Values['service'] := 'cl';

   IdHTTP1.IOHandler := IdSSLIOHandlerSocketOpenSSL1;
   IdHTTP1.Request.ContentType := 'application/x-www-form-urlencoded';
   IdHTTP1.Post('https://www.google.com/accounts/ClientLogin', S, M);
   Memo1.Lines.Add(Format('Response Code: %d', [IdHTTP1.ResponseCode]));
   Memo1.Lines.Add(Format('Response Text: %s', [IdHTTP1.ResponseText]));

   M.Position := 0;
   S.LoadFromStream(M);
   Memo1.Lines.AddStrings(S);
 finally
   S.Free;
   M.Free;
 end;

端;

答案 2 :(得分:0)

Indy的另一个替代方案是Synapse

这个类库提供了对帖子的完全控制,但也提供了一个简单的单线程帖子方法:

function HttpPostURL(const URL, URLData: string; const Data: TStream): Boolean;